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Finding the Fourth Proportional to 260,382.54, 359,313.45 and 145,639.02

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Solution

The fourth proportional to 260,382.54, 359,313.45 and 145,639.02 is: 200,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,382.54 : 359,313.45 = 145,639.02 : x
  2. Step 2: Convert to fraction form
    260,382.54/359,313.45 = 145,639.02/x
  3. Step 3: Cross multiply
    260,382.54x = 359,313.45 × 145,639.02
  4. Step 4: Simplify right side
    260,382.54x = 52,330,058,730.82
  5. Step 5: Solve for x
    x = 52,330,058,730.82/260,382.54
  6. Step 6: Final answer
    x = 200,973.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.